Hitachi 4-1/2 Inch 6.2 Amp Slide Switch Angle Grinder Kit w/ 5 Abrasive WheelsThe 4 1 2 inch Angle Grinder (G12SR4) offers a smaller grip diameter which contributes to easier control and less fatigue with continuous use, increased performance with a higher power input of 6. 2 amp and higher overload durability. The powerful 6. 2 amp motor on this grinder delivers great performance on tough jobs. The new motor design creates better cooling efficiency and ensures high motor durability. The grinder also has a spindle lock for easy